Hand-clamp.



L. F. PEDERSON.

HAND CLAMP.

APPLICATION FILED MAR. 4; 1915- Patented Aug. 24, 1915.

wizzwsea J7? deaifiar Jam 1r Z'Pederaow W m W LOUIS F. PEDERSON, OF SOUTH STILLWATER, MINNESOTA.

HAND-CLAMP.

' Specification of Letters Patent.

Patented Aug. 24, 1915.

Application filed March 4, 1915. Serial No. 12,034.

To all whom it may concern Be it known that I, LOUIS F. PnDnRsoN, a citizen of the United States of America, residing at South Stillwater, in the county of Washington and State of Minnesota, have invented certain new and useful Improvements in Hand- Clamps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in hand clamps, especially adapted for use in holding together assembled parts of endless bodies of various forms, while the glue, by which they are held together, is drying.

To the above end, generally stated, the invention consists of the novel devices and combination of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indi cate like parts throughout the several views.

Referring to the drawings: Figure 1 is a side elevation of the improved clamp; Fig. 2 is a front elevation of the same with some parts sectioned on the line X X of Fig. 1; Fig. 3 is a plan view of the improved clamp, some parts being broken away; Fig. 4t is a side elevation of the base and fixed leg of the improved clamp; and Fig. 5 is a side elevation of the removable parts of the improved clamp, some parts being broken away and some of the exposed parts being shown in section.

The improved hand clamp comprises a base 1, a pair of laterally spaced legs 2 and 3, a heavy screw 4, a hand crank 5, a clamping head 6, and an endless link 7.

As shown, the fixed leg 2 is cast integral with the base 1 and said base is rigidly secured to a floor, or other suitable support, by screws or bolts, (not shown) passed through vertical apertures at the end portions of said base.

The leg 3 is removably fulcrumed by forming the lower extremity thereof obliquely and mounting the same in an oblique channel, or seat, 8, cut transversely through said base, and having upwardly flaring side walls. The screw 4: has screw threaded engagement with the intermediate portion of the removable leg 3, and the hand crank 5 is pinned to the outer end of said screw, while the clamping head 6 is swiveled to the inner end thereof for swinging movement 1n a vertical frame.

Formed with the upward extremities of the legs 2 and 3 are heads 9, provided with horizontally extended notches 10. The endless link 7 is arranged to embrace these heads 9, is seated in their notches 10, and thereby anchors the upper extremity of the leg 3 to the upper extremity of the fixed leg 2 against lateral separation with respect thereto. The upwardly flaring side walls of the seat 8 permit a limited swinging movement of the leg 3 toward and from the fixed leg 2. The purpose of this movement is to permit the upper end of the leg 3 to be moved toward the fixed leg 2 in applying or removing the link 7 within the notches 10 of the heads 9.

In gluing together the assembled parts of an endless body, the leg 3 and link 7 are removed from their operating positions to permit the work to be placed on top of the base 1 with one of its faces in contact with the fixed leg 2. The leg 3 and link 7 are then assembled in their operative positions with respect to the base and fixed leg; and then operating the hand crank 5, the clamping head 6 is carried by the screw 4 toward the fixed leg 2, which acts as a base of resist ance for clamping the work between said leg 2 and the clamping head 6.

From the foregoing description it is evident that the improved hand clamp may be very quickly assembled or taken apart in applying or removing the work therefrom, thus saving a large amount of time.

What I claim is 1. The combination with a base having a pair of laterally spaced legs, one of which is fixed and the other of which is detachably fulcrumed on said base for a limited swinging movement toward and from said fixed leg, the outer extremities of said legs having notched heads, of an endless link embracing said legs and seated in the notches of their heads, a hand screw having screw threaded engagement with the intermediate portion of said detachable leg, and a clampi'ng head applied to said hand screw for cooperation with said fixed leg.

2. The combination with a base having a pair of laterally spaced legs, with notched heads at their outer extremities, one of said legs being fixed and the other being detachable, said base having an up'wardly-diverg- I clamping head applied to said hand screw ing seat and the detachable leg having an for cooperation with said fixed leg. 10

' oblique lower end removably fulcrumed in In testimony whereof I aflix my signature said seat, of an endless link embracing said in presence of two witnesses;

legs and removably seated in the notches-0f LOUIS F. PEDERSON. these heads, a hand screw having screw Witnesses: threaded engagement with the intermediate JAS. E. Sorrow, portion with said detachable leg and a JOHN R. PEDERs0N.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner ot ratents.

l Washington, I). G. i 

